Articles

Access the latest knowledge in applied science, electrical engineering, computer science and information technology, education, and health.

Advanced Search
Filter Icon

Filters article

Years

FAQ Arrow
Single Year
Range Year
0
0

Source Title

FAQ Arrow

Authors

FAQ Arrow

28,719 Article Results

Design and Fabrication of Rectifying Antenna Circuit for Wireless Power Transmission System Operating At ISM Band

10.11591/ijece.v6i4.pp1522-1528
Chuc Huu Doan , Duong Gia Bach
This paper introduces an overview of a rectifying antenna (rectenna) circuit topology for microwave power transmission system. Specially, a rectenna based on a microstrip patch antenna and a microwave double voltage rectifier at 2.45GHz were designed and fabricated.  The antenna’s return loss is achieved of -15 dB at 2.45GHz. The microwave to DC conversion efficiency of the rectenna was measured as 71.5% with 22 dBm input power and 810 Ohm load. The design  and simulated results  were  carried out  by  the  microwave engineering professional  design software,  known as ADS2009 package. All design and simulation results will be reported.
Volume: 6
Issue: 4
Page: 1522-1528
Publish at: 2016-08-01

New Decimation-In-Time Fast Hartley Transform Algorithm

10.11591/ijece.v6i4.pp1654-1661
Mounir Taha Hamood
This paper presents a new algorithm for fast calculation of the discrete Hartley transform (DHT) based on decimation-in-time (DIT) approach. The proposed radix-2^2 fast Hartley transform (FHT) DIT algorithm has a regular butterfly structure that provides flexibility of different powers-of-two transform lengths, substantially reducing the arithmetic complexity with simple bit reversing for ordering the output sequence. The algorithm is developed through the three-dimensional linear index map and by integrating two stages of the signal flow graph together into a single butterfly. The algorithm is implemented and its computational complexity has been analysed and compared with the existing FHT algorithms, showing that it is significantly reduce the structural complexity with a better indexing scheme that is suitable for efficient implementation.
Volume: 6
Issue: 4
Page: 1654-1661
Publish at: 2016-08-01

Hybrid Photovoltaic and Wind Power System with Battery Management System Using Fuzzy Logic Controller

10.11591/ijape.v5.i2.pp72-78
M. Venkateshkumar , R. Raghavan
In recent year, the development of hybrid renewable energy sources has the important role of power generation. This paper focused on  design of hybrid PV / Wind power system and its battery management system. The fuzzy logic control based battery management system has been designed for effective power utilization. The proposed control to operate the battery charging and discharging mode during non-linear power generation. The battery will charge whenever the renewable energy power is greater than to consumer load power as well as the battery will discharge whenever the renewable energy power is lesser than to consumer load power. The proposed model will be simulated using Matlab environment and analysis the proposed system results. Finally, simulation results are evaluated and validating the effectiveness of the proposed controller.
Volume: 5
Issue: 2
Page: 72-78
Publish at: 2016-08-01

A Novel Loom for Alacrity of Protected Lawsuit dealings using Cloud Computing Environment

10.11591/ijece.v6i4.pp1792-1799
B.V. Subba Rao , J. Rajendra Prasad , D. Kavitha , J. Sirisha , K. Swaroopa Rani
This paper suggest a well-organized information system for facilitate the litigation procedures Information System courts. The purpose is to decrease the duration of processing cases in courts. The aspiration is to save the time and effort of judges and lawyer. In addition, we make use of the advantages of electronic systems and reducing traffic especially in developed countries. Advanced Encryption Standard is used to encrypt all the manipulated data for each case. All read document are encrypted to attain secure information system Litigation process. This is because the big data for all cases will be stored on cloud environment.
Volume: 6
Issue: 4
Page: 1792-1799
Publish at: 2016-08-01

Comparative Study on the AC Brekadown Voltage of Palm Fatty Acid Ester Insulation Oils Mixed With Iron Oxide Nanoparticles

10.11591/ijece.v6i4.pp1481-1488
Mohd Safwan Mohamad , Hidayat Zainuddin , Sharin Ab Ghani , Imran Sutan Chairul
Mineral oils are are derived from petroleum which is a non-renewable and non-sustainable source, and therefore there is a critical need to develop alternative insulation oils for use in transformers.  Ester oils offer a number of benefits over mineral oils such as good biodegradability, high cooling stability, good oxidation stability and excellent insulation performance. Nowadays, nanotechnology has become one of the most important research fields in both the academia and industry and it has been shown in previous studies that nanoscale materials are beneficial for transformers. In this regard, the objective of this study is to compare the AC breakdown voltage of palm fatty acid ester (PFAE) oils mixed with iron oxide (Fe3O4) nanoparticles. The PFAE-based nanofluids are prepared using two methods: (1) Method I (weight-based method whereby the concentration of the Fe3O4 nanoparticles is 0.01 g/l) and (2) Method II (volume-fraction method whereby the concentration of the Fe3O4 nanoparticles is 0.01, 0.02 and 0.03%). The AC breakdown voltage test is conducted on the PFAE-based nanofluids in accordance with the ASTM D1816 standard test method. Weibull statistical analysis is carried out to analyse the AC breakdown voltage of fresh PFAE oil and PFAE-based nanofluids. It is found that there is enhancement of the AC breakdown voltage for all PFAE-based nanofluids with the exception of with the exception of one sample prepared using Method II (0.01% Fe3O4 nanoparticles).
Volume: 6
Issue: 4
Page: 1481-1488
Publish at: 2016-08-01

Face Recognition with Modular Two Dimensional PCA under Uncontrolled Illumination Variations

10.11591/ijece.v6i4.pp1610-1616
Venkatramaphanikumar S , K. V. Krishna Kishore
Person authenticaton using faces became one of the most popular security approaches for the last three decades.  From the literature it is found that perofrmance of most of the methods used in recognition was limited due to uncontrolled conditions like illumination and pose variations.  In this work, to address the limitations of uncontrolled environment, Modular two-dimensional Principle Component Analysis (M2D-PCA) is proposed.  In this approach, the input image is partitioned into four equal segments and then Histogram Equalization is applied to reduce illumination impact caused due to varying lightening conditions. Then M2D-PCA algorithm is applied parallel on each segment and then all features extracted from the segments are fused with wieghted summation. Experiments are carried out on bench mark datasets like extended Yale database B, ORL and AR database.   Results of the proposed approach produced good recognition rate with low computational time against various illumination environments.
Volume: 6
Issue: 4
Page: 1610-1616
Publish at: 2016-08-01

Parasitic Strip Loaded Dual Band Notch Circular Monopole Antenna with Defected Ground Structure

10.11591/ijece.v6i4.pp1742-1750
P Syam Sundar , Sarat K Kotamraju , B T P Madhav , M Sreehari , K Raghavendra Rao , L Prathyusha , Y Pravallika
In this article a parasitic strip loaded monopole antennas are designed to notch dual and triple bands. The designed models are constructed on one side of the substrate material and on the other end defected ground structures are implemented. The basic antenna comprises a tuning stub and a ground plane with tapered shape slot as DGS. Another model is constructed with circular monopole radiating element on front side and similar kind of ground structure used in the basic rectangular tuning stub antenna. To create notched bands with tuning stubs, two symmetrical parasitic slits are placed inside the slot of the ground plane. The basic model is of the rectangular stub notching triple band and the circular tuning stub antenna notching dual band. Dual band notched circular tuning stub antenna is prototyped on FR4 substrate and measured results from vector network analyzer are compared with simulation results of HFSS for validation.
Volume: 6
Issue: 4
Page: 1742-1750
Publish at: 2016-08-01

Evaluation of Power Quality Issues in grid Connected PV Systems

10.11591/ijece.v6i4.pp1412-1420
Gunjan Varshney , D S Chauhan , M P Dave
This paper deals with the evaluation of power quality issues in grid connected PV systems. This paper also presents  complete simulation, modeling and control of three phase grid connected solar PV module with Maximum Power Point Tracking. Perturb and Observe (P&O) method has been used for Maximum Power Point Tracking. In the proposed model DC bus voltage control , harmonic mitigation and power factor control are discussed as power quality issues. The simulation results are shown in the graphical waveforms and simulation is performed in MATLAB using SIMULINK environment and PSB toolboxes.  
Volume: 6
Issue: 4
Page: 1412-1420
Publish at: 2016-08-01

Building Fault Tollrence within Clouds at Network Level

10.11591/ijece.v6i4.pp1560-1569
Sastry Kodanda Rama Jammalamadaka , Kamesh Bala Krishna Duvvuri , Devi Anusha CH , Padmini P , Siva Anjaneyulu G
Cloud computing technologies and infrastructure facilities are coming up in a big way making it cost effective for the users to implement their IT based solutions to run business in most cost-effective and economical way. Many intricate issues however, have cropped-up which must be addressed to be able to use clouds the purpose for which they are designed and implemented. Among all, fault tolerance and securing the data stored on the clouds takes most of the importance. Continuous availability of the services is dependent on many factors. Faults bound to happen within a network, software, and platform or within the infrastructure which are all used for establishing the cloud. The network that connects various servers, devices, peripherals etc., have to be fault tolerant to start-with so that intended and un-interrupted services to the user can be made available. A novel network design method that leads to achieve high availability of the network and thereby the cloud itself has been presented in this paper
Volume: 6
Issue: 4
Page: 1560-1569
Publish at: 2016-08-01

Critical Analysis of Data Forwarding Routing Protocols Based on Single path for UWSN

10.11591/ijece.v6i4.pp1695-1701
Mukhtiar Ahmed , Mazleena Salleh , Mohammad Ibrahim Channa
In Underwater Wireless Sensor Network (UWSN); the sensor node is responsible to extract the valuable application based information from underwater environment. The application based information covers the applications like: tactical surveillance, assisted navigation, disaster prevention, offshore exploration, pollution monitoring and oceanographic data collection. The design of routing protocol in underwater environment is one of the challenging issues for researchers. This research article focuses the designing issues of the data forwarding routing protocols based on single path. In this article the designing of 2D and 3D architecture of routing protocols are discussed with their different issues. This article also focuses the analytical approach of proposed routing protocols with different parameters, the simulation scenarios of the single path routing protocols with critical analysis; and the open research issues; will help the researchers to further research in the field of routing protocols for UWSN.
Volume: 6
Issue: 4
Page: 1695-1701
Publish at: 2016-08-01

A Fuzzy Logic Control Strategy for Buck PFC Converter Based 4- Switch VSI Fed BLDC Motor Drive

10.11591/ijece.v6i4.pp1470-1480
V. Ramesh , Y. Kusuma Latha
In this paper, a new Buck PFC dc–dc converter topology along with fuzzy logic control for a permanent magnet (PM) brushless dc motor (PMBLDCM) has been proposed. The proposed buck-PFC converter topology is on single stage power factor correction converter. A concept of dc link voltage control which is proportional to speed of the PMBLDCM is used in this paper. The stator currents of the PMBLDCM during step change in the reference speed are controlled within the specified limits by an addition of a rate limiter in the reference dc link voltage. The effectives of the proposed control strategy of PMBLDCM drive is validated through simulation results.
Volume: 6
Issue: 4
Page: 1470-1480
Publish at: 2016-08-01

Fast Obstacle Distance Estimation using Laser Line Imaging Technique for Smart Wheelchair

10.11591/ijece.v6i4.pp1602-1609
Fitri Utaminingrum , Hurriyatul Fitriyah , Randy Cahya Wihandika , M Ali Fauzi , Dahnial Syauqy , Rizal Maulana
This paper presents an approach of obstacle distance estimation for smart wheelchair. A smart wheelchair was equipped with a camera and a laser line. The camera was used to capture an image from the environment in order to sense the pathway condition. The laser line was used in combination with camera to recognize an obstacle in the pathway based on the shape of laser line image in certain angle. A blob method detection was then applied on the laser line image to separate and recognize the pattern of the detected obstacles. The laser line projector and camera which was mounted in fixed-certain position ensured a fixed relation between blobs-gap and obstacle-to-wheelchair distance. A simple linear regression from 16 obtained data was used to respresent this relation as the estimated obstacle distance. As a result, the average error between the estimation and the actual distance was 1.25 cm from 7 data testing experiments. Therefore, the experiment results show that the proposed method was able to estimate the distance between wheelchair and the obstacle.
Volume: 6
Issue: 4
Page: 1602-1609
Publish at: 2016-08-01

Efficient Feature Subset Selection Algorithm for High Dimensional Data

10.11591/ijece.v6i4.pp1880-1888
Smita Chormunge , Sudarson Jena
Feature selection approach solves the dimensionality problem by removing irrelevant and redundant features. Existing Feature selection algorithms take more time to obtain feature subset for high dimensional data. This paper proposes a feature selection algorithm based on Information gain measures for high dimensional data termed as IFSA (Information gain based Feature Selection Algorithm) to produce optimal feature subset in efficient time and improve the computational performance of learning algorithms. IFSA algorithm works in two folds: First apply filter on dataset. Second produce the small feature subset by using information gain measure. Extensive experiments are carried out to compare proposed algorithm and other methods with respect to two different classifiers (Naive bayes and IBK) on microarray and text data sets. The results demonstrate that IFSA not only produces the most select feature subset in efficient time but also improves the classifier performance.
Volume: 6
Issue: 4
Page: 1880-1888
Publish at: 2016-08-01

Coplanar Wave Guide Fed Dual Band Notched MIMO Antenna

10.11591/ijece.v6i4.pp1732-1741
D S Ramkiran , B T P Madhav , Kankara Narasimha Reddy , Shaik Shabbeer , Priyanshi Jain , Saggurthi Sowmya
A coplanar wave guide fed of semicircle monopole antenna is designed in this work to overcome polarization diversity mimo technique is implemented in this paper. The proposed antenna is designed to notch a particular band of frequencies in UWB range. The designed model is notching the first band from 2 to 5 GHz & the second band from 7 to 11 GHz. The proposed antenna has been fabricated on FR4 substrate with di electric constant 4.4 & tested for its reliability on ZNB20 vector network analyzer. The operating bands will come under WLAN, KU band, satellite communication applications. A peak realized gain of 4.3 dB with radiation efficiency 90% is attained at the operating bands of the designed antenna. At notch band significant gain reduction is observed from the current design. The antenna is showing omnidirectional radiation pattern in the pass band & disturbed radiation pattern in the notch band. Antenna is fabricated with dimensions of 40x68x1.6 mm & simulation works are carried with finite element method based HFSS tool.
Volume: 6
Issue: 4
Page: 1732-1741
Publish at: 2016-08-01

A Review of Wind Speed Estimation for Wind Turbine Systems Based on Kalman Filter Technique

10.11591/ijece.v6i4.pp1406-1411
M. Najafi Khoshrodi , Mohammad Jannati , Tole Sutikno
This paper presents a review of wind speed estimation based on Kalman filter technique applied to wind turbine systems. Generally, wind speed measurement is performed by anemometer. The wind speed provided by the anemometer is measured at a single point of the rotor plane which is not the accurate wind speed. Also, using anemometer increases the system cost, maintenance, complexity and reduces the reliability. For these reasons, estimation of wind speed is needed for wind turbine systems. In this paper, the several wind speed estimation methods based on Kalman filter method used for wind turbine systems are reviewed.
Volume: 6
Issue: 4
Page: 1406-1411
Publish at: 2016-08-01
1 2 3
...
1914 1915
Show 1559 of 1915

Discover Our Library

Embark on a journey through our expansive collection of articles and let curiosity lead your path to innovation.

Explore Now
Library 3D Ilustration